const char IP_table[64]={
    58,50,42,34,26,18,10,2,
    60,52,44,36,28,20,12,4,
	62,54,46,38,30,22,14,6,
    64,56,48,40,32,24,16,8,
	57,49,41,33,25,17,9,1,
    59,51,43,35,27,19,11,3,
	61,53,45,37,29,21,13,5,
    63,55,47,39,31,23,15, 7 
};

const char invIP_table[64]={
    40,8,48,16,56,24,64,32,
    39,7,47,15,55,23,63,31,
	38,6,46,14,54,22,62,30,
    37,5,45,13,53,21,61,29,
	36,4,44,12,52,20,60,28,
    35,3,43,11,51,19,59,27,
	34,2,42,10,50,18,58,26,
    33, 1,41, 9,49,17,57,25	
};

const char E_table[48]={
    32, 1, 2, 3, 4, 5, 
    4, 5, 6, 7, 8, 9,
    8, 9, 10,11,12,13,
    12,13,14,15,16,17,
    16,17,18,19,20,21,
    20,21,22,23,24,25,
    24,25,26,27,28,29,
    28,29,30,31,32, 1
};

const char P_table[32] = {
	16,7,20,21,
	29,12,28,17,
	1,15,23,26,
	5,18,31,10,
	2,8,24,14,
	32,27,3,9,
	19,13,30,6,
	22,11,4,25
};

const char PC1_table[56]={
    57,49,41,33,25,17, 9, 
    1,58,50,42,34,26, 18,
	10, 2,59,51,43,35,27,
    19,11, 3,60,52,44,36,
	63,55,47,39,31,23,15, 
    7,62,54,46,38,30, 22,
	14, 6,61,53,45,37,29,
    21,13, 5,28,20,12, 4
};

const char PC2_table[48]={
    14,17,11,24, 1, 5, 
    3,28,15, 6,21,10,
	23,19,12, 4,26, 8,
    16, 7,27,20,13, 2,
	41,52,31,37,47,55,
    30,40,51,34,33,48,
	44,49,39,56,34,53,
    46,42,50,36,29,32	
};

static char S_Box[8][4][16]={
    //S1
    14, 4,13, 1, 2,15,11, 8, 3,10, 6,12, 5, 9, 0, 7,
	0,15, 7, 4,14, 2,13, 1,10, 6,12,11, 9, 5, 3, 8,
	4, 1,14, 8,13, 6, 2,11,15,12, 9, 7, 3,10, 5, 0,
	15,12, 8, 2, 4, 9, 1, 7, 5,11, 3,14,10, 0, 6,13,
	//S2
	15, 1, 8,14, 6,11, 3, 4, 9, 7, 2,13,12, 0, 5,10,
	3,13, 4, 7,15, 2, 8,14,12, 0, 1,10, 6, 9,11, 5,
	0,14, 7,11,10, 4,13, 1, 5, 8,12, 6, 9, 3, 2,15,
	13, 8,10, 1, 3,15, 4, 2,11, 6, 7,12, 0, 5,14, 9,
	//S3
	10, 0, 9,14, 6, 3,15, 5, 1,13,12, 7,11, 4, 2, 8,
	13, 7, 0, 9, 3, 4, 6,10, 2, 8, 5,14,12,11,15, 1,
	13, 6, 4, 9, 8,15, 3, 0,11, 1, 2,12, 5,10,14, 7,
	1,10,13, 0, 6, 9, 8, 7, 4,15,14, 3,11, 5, 2,12,
	//S4
	7,13,14, 3, 0, 6, 9,10, 1, 2, 8, 5,11,12, 4,15,
	13, 8,11, 5, 6,15, 0, 3, 4, 7, 2,12, 1,10,14, 9,
	10, 6, 9, 0,12,11, 7,13,15, 1, 3,14, 5, 2, 8, 4,
	3,15, 0, 6,10, 1,13, 8, 9, 4, 5,11,12, 7, 2,14,
	//S5
	2,12, 4, 1, 7,10,11, 6, 8, 5, 3,15,13, 0,14, 9,
	14,11, 2,12, 4, 7,13, 1, 5, 0,15,10, 3, 9, 8, 6,
	4, 2, 1,11,10,13, 7, 8,15, 9,12, 5, 6, 3, 0,14,
	11, 8,12, 7, 1,14, 2,13, 6,15, 0, 9,10, 4, 5, 3,
	//S6
	12, 1,10,15, 9, 2, 6, 8, 0,13, 3, 4,14, 7, 5,11,
	10,15, 4, 2, 7,12, 0, 5, 6, 1,13,14, 0,11, 3, 8,
	9,14,15, 5, 2, 8,12, 3, 7, 0, 4,10, 1,13,11, 6,
    4, 3, 2,12, 9, 5,15,10,11,14, 1, 7, 6, 0, 8,13,
	//S7
	4,11, 2,14,15, 0, 8,13, 3,12, 9, 7, 5,10, 6, 1,
	13, 0,11, 7, 4, 0, 1,10,14, 3, 5,12, 2,15, 8, 6,
	1, 4,11,13,12, 3, 7,14,10,15, 6, 8, 0, 5, 9, 2,
	6,11,13, 8, 1, 4,10, 7, 9, 5, 0,15,14, 2, 3,12,
	//S8
	13, 2, 8, 4, 6,15,11, 1,10, 9, 3,14, 5, 0,12, 7,
	1,15,13, 8,10, 3, 7, 4,12, 5, 6,11, 0,14, 9, 2,
	7,11, 4, 1, 9,12,14, 2, 0, 6,10,13,15, 3, 5, 8,
	2, 1,14, 7, 4,10, 8,13,15,12, 9, 0, 3, 5, 6,11
};

const char Move_table[16] = {
    1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1
};